单选题某轮船速12kn,顶流顺风航行,流速2kn,风使船增速1kn,则1h后船舶实际航程为()。A10nmileB11nmileC12nmileD13nmile
单选题
某轮船速12kn,顶流顺风航行,流速2kn,风使船增速1kn,则1h后船舶实际航程为()。
A
10nmile
B
11nmile
C
12nmile
D
13nmile
参考解析
解析:
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